/Engine/Plugins/Experimental/UIFramework/Source/Public/UIFLocalSettings.h
This alternate version of PostEditChange is called when properties inside structs are modified. The property that was actually modified is located at the tail of the list. The head of the list of theFStructPropertymember variable that contains the property that was modified.
virtual void PostEditChangeChainProperty ( struct [FPropertyChangedChainEvent](API\Runtime\CoreUObject\UObject\FPropertyChangedChainEvent) & PropertyChangedEvent )